oke guys, first what we need to install is:1. slimlock from AUR Repo
2. xautolock from Arch Linux Repo

in here i just give you tutor install xautolock and configure it.

$ sudo pacman -S xautolock
$ xautolock -time 1 -locker slimlock

#description

– xautolock : this is program for make slimlock run after 10 inactivities
– -time : set your timer
– 1 : your set minutes
– -locker : command for run screen locker
– slimlock : this is program what we use for screen locking.